Feature request

We are now running xfs + overlayfs + containerd in k8s.
Container's root is not limited now , so when user writes lots data to container's root, it will cause the host's root disk full. This is dangerous for the host.

why

It is a valuable feature for containerd users. In k8s cluster, there will be many containers running on the same host, they belongs to different users. You need to keep the host not be impacted by one user's abnormal behavior.